*SUPPORT*
IN: dax OUT: GREEN
IN: wif OUT: RED
IN: dax wif kiki fep blicket dax OUT: GREEN BLUE GREEN RED BLUE GREEN RED
IN: fep tufa OUT: BLUE BLUE
IN: fep OUT: BLUE
IN: dax tufa blicket lug OUT: PURPLE GREEN GREEN
IN: fep dax tufa kiki dax OUT: GREEN BLUE GREEN GREEN GREEN BLUE GREEN GREEN
IN: fep blicket dax blicket dax OUT: GREEN GREEN BLUE
IN: wif tufa OUT: RED RED
IN: dax lug dax kiki lug OUT: PURPLE GREEN PURPLE GREEN PURPLE GREEN PURPLE GREEN
IN: lug wif tufa OUT: PURPLE RED RED
IN: dax blicket dax OUT: GREEN GREEN
IN: wif lug OUT: RED PURPLE
IN: lug OUT: PURPLE

*QUERY*
IN: lug wif wif tufa OUT: PURPLE RED RED RED
IN: fep kiki dax OUT: GREEN BLUE GREEN BLUE
IN: wif wif tufa OUT: RED RED RED
IN: fep blicket lug OUT: PURPLE BLUE
IN: wif blicket wif kiki wif OUT: RED RED RED RED RED RED
IN: lug tufa OUT: PURPLE PURPLE
IN: dax lug tufa OUT: GREEN PURPLE PURPLE
IN: fep tufa blicket fep kiki wif OUT: RED BLUE BLUE BLUE RED BLUE BLUE BLUE
IN: fep dax dax lug tufa blicket fep OUT: BLUE BLUE GREEN GREEN PURPLE PURPLE
IN: dax tufa OUT: GREEN GREEN

*GRAMMAR*
fep -> BLUE 
 lug -> PURPLE 
 dax -> GREEN 
 wif -> RED 
 x1 kiki u1 -> [u1] [x1] [u1] [x1] 
 x1 blicket u1 -> [u1] [x1] 
 u1 tufa -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 